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Radon solutions in selected high schools in South Bohemia
PICHLOVÁ, Irena
The principal aim of this diploma thesis was to monitor radon volume activity from the ground at the buildings of selected high schools in the South Bohemian Region. The theoretical part of the diploma thesis was processed by secondary data analysis. With the help of professional literature, valid legislation and Internet texts, radon problems were analyzed. I dealt with the penetration of radon from the subsoil, water and construction material into the buildings. Furthermore, its biological effects on human health, radon program, subsidies and legislation regulating radon problems. The research was proceed through a qualitative search using secondary data analysis. The needful data for the research part of the diploma thesis I got from my own measurement of radon volume activity in five high schools in the South Bohemian Region, supplemented by the measurement of carbon dioxide. I measured the radon volume activity with the continual monitor Radim 5B and the carbon dioxide concentration with the Wöhler KM 410 for climate assessment. Measured result values were processed using special programs on the computer and the results were displayed in graphs. The measurements made it clear that in selected schools up to one have not a greater problem with radon. From the measured values of carbon dioxide concentrations is evident that in schools is not enough ventilation, and the insulation of the building and the replacement of the windows on behalf of Eurowindows plastic or wooden has an fundamental effect. Consequently, the concentration of radon is then higher than it could be. In view of these facts, it would be advisable to carry out a ventilation system in schools or create vents in the masonry to ensure that clean air is drawn into the building.
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Population awareness of the radon issue in the Pilsen Region
JUDLOVÁ, Monika
Radon leaking out of the geological subsoil belongs to the most significant sources of population irradiation and as a proven human carcinogen it raises the probability of lung cancer occurrence. Nowadays many ways exist, how to protect yourself from the impacts of radon and from its higher concentration in buildings. However, the population isn't sufficiently informed about this issue. Raising the population awareness of the radon issue is therefore one of the aims of Czech radon programme. In the theoretical part of this bachelor thesis, the basic knowledge about radioactivity, ionizing radiation and its sources are summarized. The outline of quantities used in these matters was listed as well. This part by all means summarizes the radon issue, the occurrence of radon in buildings and its impacts on human health, as well as anti-radon measures. The practical part deals with the quantitative research, which task was to find out and evaluate the population awareness of the radon issue in the Pilsen Region. The research was carried out on the basis of questionnaire survey. To process the results, the methods of descriptive and mathematical statistics were used. With the help of two-choice t-test the stated hypothesis was confirmed: "The part of population of Pilsen Region which lives in family detached houses has statistically more relevant knowledge of radon issue that the part which lives in apartments." The residents of family houses gave most of the time better answers to questions than residents of apartments. The best answered questions were those dealing with the problematics which citizen face when building a house. On the other hand, the worst answered questions were the professional ones, dealing with comparing radiation burden of radon to nuclear power plants or the concentration of radon in the Czech Republic. The benefit of this thesis is a retrieved overview of the awareness of the radon issue among the residents of Pilsen Region. Moreover, the thesis could serve as a subject of future bachelor or master theses, with the option of extending the research part.
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